OPTIONS / RTSP/1.0″ – Apache Access Log Entry
Analysing OPTIONS /RTSP/1.0 in Apache access log file.
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We detected a log entry in our Apache Access logs. Updated.
This log entry indicates that a request was made using the
OPTIONS method and the
Here’s a breakdown:
- 2a06:4880:1000::20: This is an IPv6 address of the client that made the request.
- [25/Oct/2023:00:10:14 +0000]: Timestamp of when the request was received.
- “OPTIONS / RTSP/1.0”: This indicates a request using the
OPTIONSmethod for the root (
/) of your server using the
- 400: HTTP status code returned by your server. A
400status code means “Bad Request,” indicating that there was something wrong with the request sent by the client.
- 491: Size of the response in bytes.
- “-” “- “: Placeholders for the referrer and user agent, respectively. Both are absent in this request.
What does this mean?
- RTSP (Real Time Streaming Protocol): RTSP is a network control protocol used for streaming media services. The fact that there’s an
RTSPrequest on an Apache server (typically serving HTTP/HTTPS requests) is unusual and can be considered suspicious unless you are indeed running a media streaming server.
- Potential Scanning Activity: Like the previous log entry, this could be an indication of automated scanning activity. Bots or attackers often probe servers looking for open ports, services, or vulnerabilities they can exploit.
- Bad Request: The
400response indicates that your server recognized the request as malformed or unsupported.
What should you do if this happens to you?
- Verify Your Services: Make sure you are aware of all services running on your server. If you’re not intentionally running a streaming server or service that uses RTSP, this log entry is even more suspicious.
- Firewall: Ensure you have a firewall in place and only necessary ports are open. Close any ports that you don’t need. For example, if you’re not running a streaming server, there’s no reason for RTSP-related ports (like 554) to be open.
- Regular Monitoring: Continuously monitor server logs for unusual or unexpected requests.
- Block Suspicious IPs: If you notice a pattern of suspicious requests from specific IP addresses, consider blocking those IPs.
- Updates & Patches: Ensure all server software is updated regularly. This includes the OS, server software, and any other utilities or services you are running.
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